Finding the Fourth Proportional to 215,624.28, 297,587.82 and 130,741.08
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Solution
The fourth proportional to 215,624.28, 297,587.82 and 130,741.08 is: 180,438.65
Step by Step Solution
- Step 1: Write the proportion equation
215,624.28 : 297,587.82 = 130,741.08 : x - Step 2: Convert to fraction form
215,624.28/297,587.82 = 130,741.08/x - Step 3: Cross multiply
215,624.28x = 297,587.82 × 130,741.08 - Step 4: Simplify right side
215,624.28x = 38,906,952,981.65 - Step 5: Solve for x
x = 38,906,952,981.65/215,624.28 - Step 6: Final answer
x = 180,438.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.